{"id":1027,"date":"2026-01-19T01:57:55","date_gmt":"2026-01-19T01:57:55","guid":{"rendered":"https:\/\/template01.zehannet.net\/?p=1027"},"modified":"2026-01-19T01:57:56","modified_gmt":"2026-01-19T01:57:56","slug":"what-thickness-of-flex-pcb-material-is-best-for-wearables","status":"publish","type":"post","link":"https:\/\/template01.zehannet.net\/ar\/what-thickness-of-flex-pcb-material-is-best-for-wearables\/","title":{"rendered":"What thickness of flex PCB material is best for wearables?"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><h2>Table of Contents<\/h2><nav><ul><li><a href=\"#flex-pcb-thickness-for-wearables-the-short-answer\">Flex PCB thickness for wearables: the short answer<\/a><\/li><li><a href=\"#dynamic-flex-vs-static-flex-in-wearables\">Dynamic flex vs static flex in wearables<\/a><ul><li><a href=\"#dynamic-flex-repeated-bending-\">Dynamic flex (repeated bending)<\/a><\/li><li><a href=\"#static-flex-install-and-forget-\">Static flex (install-and-forget)<\/a><\/li><\/ul><\/li><li><a href=\"#typical-flex-pcb-thickness-ranges-for-wearables\">Typical flex PCB thickness ranges for wearables<\/a><\/li><li><a href=\"#polyimide-thickness-and-adhesive-how-the-base-film-changes-feel\">Polyimide thickness and adhesive: how the base film changes feel<\/a><ul><li><a href=\"#12-5-m-25-m-50-m-polyimide-options\">12.5 \u03bcm, 25 \u03bcm, 50 \u03bcm polyimide options<\/a><\/li><\/ul><\/li><li><a href=\"#minimum-bend-radius-thickness-math-you-can-use-on-day-one\">Minimum bend radius: thickness math you can use on day one<\/a><\/li><li><a href=\"#copper-thickness-layer-count-and-impedance-why-thin-isn-t-always-better-\">Copper thickness, layer count, and impedance: why \u201cthin\u201d isn\u2019t always \u201cbetter\u201d<\/a><ul><li><a href=\"#copper-thickness-and-current\">Copper thickness and current<\/a><\/li><li><a href=\"#single-layer-flex-vs-multilayer-flex-vs-rigid-flex\">Single-layer flex vs multilayer flex vs rigid-flex<\/a><\/li><\/ul><\/li><li><a href=\"#stiffener-design-for-connectors-and-component-islands\">Stiffener design for connectors and component islands<\/a><ul><li><a href=\"#where-to-place-stiffeners-in-wearables\">Where to place stiffeners in wearables<\/a><\/li><\/ul><\/li><li><a href=\"#manufacturing-and-assembly-realities-for-b2b-programs\">Manufacturing and assembly realities for B2B programs<\/a><\/li><li><a href=\"#send-your-stack-up-early-what-to-include-in-your-rfq\">Send your stack-up early: what to include in your RFQ<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<p>If you build wearables, flex thickness isn\u2019t a \u201cpick one number and move on\u201d decision. It\u2019s a reliability decision. Get it right and your product feels slim, sits comfortably on the body, and survives real-life bending. Get it wrong and you\u2019ll see cracked copper, lifted pads, or a flex tail that tears right at the connector after a few weeks of use.<\/p>\n\n\n\n<p>Here\u2019s the practical answer most teams end up with:&nbsp;<strong>many wearable flex circuits land around 0.10\u20130.30 mm total thickness<\/strong>, then they use&nbsp;<strong>stiffeners<\/strong>&nbsp;and&nbsp;<strong>stack-up tweaks<\/strong>&nbsp;to hit both comfort and lifetime. In our B2B flow\u2014fast prototyping to mass production and assembly\u2014this is one of the first things we sanity-check with DFM.<\/p>\n\n\n\n<p>If you want the broader context on how we handle quick-turn builds and manufacturing handoff, start at our homepage:&nbsp;<a href=\"https:\/\/template01.zehannet.net\/ar\/\">China PCB B2B factory: fast prototyping, reliable assembly<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"720\" src=\"https:\/\/template01.zehannet.net\/wp-content\/uploads\/2026\/01\/What-thickness-of-flex-PCB-material-is-best-for-wearables-2.jpg\" alt=\"What thickness of flex PCB material is best for wearables\" class=\"wp-image-1030\" title=\"\" srcset=\"https:\/\/template01.zehannet.net\/wp-content\/uploads\/2026\/01\/What-thickness-of-flex-PCB-material-is-best-for-wearables-2.jpg 960w, https:\/\/template01.zehannet.net\/wp-content\/uploads\/2026\/01\/What-thickness-of-flex-PCB-material-is-best-for-wearables-2-600x450.jpg 600w, https:\/\/template01.zehannet.net\/wp-content\/uploads\/2026\/01\/What-thickness-of-flex-PCB-material-is-best-for-wearables-2-300x225.jpg 300w, https:\/\/template01.zehannet.net\/wp-content\/uploads\/2026\/01\/What-thickness-of-flex-PCB-material-is-best-for-wearables-2-768x576.jpg 768w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"flex-pcb-thickness-for-wearables-the-short-answer\">Flex PCB thickness for wearables: the short answer<\/h2>\n\n\n\n<p>Most wearable programs choose thickness based on&nbsp;<strong>bend type<\/strong>,&nbsp;<strong>layer count<\/strong>, and&nbsp;<strong>mechanical stress points<\/strong>&nbsp;(connectors, battery tabs, sensor windows). In plain terms:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Go\u00a0<strong>thinner<\/strong>\u00a0when the flex has to\u00a0<strong>wrap, conform, or move with the body<\/strong>.<\/li>\n\n\n\n<li>Go\u00a0<strong>thicker<\/strong>\u00a0when you need\u00a0<strong>more copper, more layers, or more mechanical robustness<\/strong>.<\/li>\n\n\n\n<li>Don\u2019t \u201cthicken the whole board\u201d to fix a local problem. Use a\u00a0<strong>stiffener island<\/strong>\u00a0where the problem actually is.<\/li>\n<\/ul>\n\n\n\n<p>When buyers ask \u201cbest thickness,\u201d they usually mean \u201cbest chance to pass EVT \u2192 DVT \u2192 PVT without re-spins.\u201d That\u2019s the goal.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"720\" src=\"https:\/\/template01.zehannet.net\/wp-content\/uploads\/2026\/01\/What-thickness-of-flex-PCB-material-is-best-for-wearables-4.jpg\" alt=\"What thickness of flex PCB material is best for wearables\" class=\"wp-image-1028\" title=\"\" srcset=\"https:\/\/template01.zehannet.net\/wp-content\/uploads\/2026\/01\/What-thickness-of-flex-PCB-material-is-best-for-wearables-4.jpg 960w, https:\/\/template01.zehannet.net\/wp-content\/uploads\/2026\/01\/What-thickness-of-flex-PCB-material-is-best-for-wearables-4-600x450.jpg 600w, https:\/\/template01.zehannet.net\/wp-content\/uploads\/2026\/01\/What-thickness-of-flex-PCB-material-is-best-for-wearables-4-300x225.jpg 300w, https:\/\/template01.zehannet.net\/wp-content\/uploads\/2026\/01\/What-thickness-of-flex-PCB-material-is-best-for-wearables-4-768x576.jpg 768w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"dynamic-flex-vs-static-flex-in-wearables\">Dynamic flex vs static flex in wearables<\/h2>\n\n\n\n<p>This is the first filter. It matters more than the headline thickness number.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"dynamic-flex-repeated-bending-\">Dynamic flex (repeated bending)<\/h3>\n\n\n\n<p>Dynamic flex means the circuit&nbsp;<strong>bends again and again<\/strong>&nbsp;in normal use. Think of a wristband tail that flexes every time a user tightens the strap, or a sensor cable that moves as someone runs.<\/p>\n\n\n\n<p>Dynamic flex pushes you toward:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>thinner flex sections<\/strong><\/li>\n\n\n\n<li><strong>larger bend radius<\/strong><\/li>\n\n\n\n<li><strong>fewer copper layers in the bend zone<\/strong><\/li>\n\n\n\n<li><strong>smooth transitions<\/strong>\u00a0(no sharp corners, no abrupt thickness changes)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"static-flex-install-and-forget-\">Static flex (install-and-forget)<\/h3>\n\n\n\n<p>Static flex means you bend it once during assembly, then it stays put. For example, folding a flex into a small enclosure and fastening it down.<\/p>\n\n\n\n<p>Static flex can tolerate:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>slightly\u00a0<strong>thicker total stack<\/strong><\/li>\n\n\n\n<li>tighter routing density<\/li>\n\n\n\n<li>more \u201cpackaging tricks,\u201d as long as the fold line is controlled<\/li>\n<\/ul>\n\n\n\n<p>If you\u2019re not sure which you have, ask a simple question:&nbsp;<strong>Will the user bend it during normal wear?<\/strong>&nbsp;If yes, treat it as dynamic flex.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"typical-flex-pcb-thickness-ranges-for-wearables\">Typical flex PCB thickness ranges for wearables<\/h2>\n\n\n\n<p>Below is a practical \u201cwhat teams actually pick\u201d view. Treat these as starting points, not hard rules.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-right\" data-align=\"right\">Total flex thickness (typical)<\/th><th>Wearable scene<\/th><th>Why it works<\/th><th>Common risk to watch<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-right\" data-align=\"right\">0.10\u20130.15 mm<\/td><td>Skin-contact patches, slim wristbands, tight curvature sensor tails<\/td><td>Very conformal, light, easy to route around edges<\/td><td>Tear-out near connectors if you skip stiffeners<\/td><\/tr><tr><td class=\"has-text-align-right\" data-align=\"right\">0.15\u20130.25 mm<\/td><td>Smartwatch interconnects, flex-to-board jumpers, moderate motion<\/td><td>Balanced stiffness and durability<\/td><td>Cracked copper if bend radius is too tight<\/td><\/tr><tr><td class=\"has-text-align-right\" data-align=\"right\">0.25\u20130.30 mm<\/td><td>Heavier layouts, more copper, more mechanical handling<\/td><td>Stronger feel, better for assembly handling<\/td><td>Feels \u201cspringy,\u201d fights your enclosure geometry<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>A real scenario: a wearable ECG sensor often wants the flex to sit flat against skin and route cleanly past a battery compartment. Teams usually keep the&nbsp;<strong>bend zone thin<\/strong>, then add a&nbsp;<strong>stiffener<\/strong>&nbsp;under the connector pads so assembly doesn\u2019t beat it up.<\/p>\n\n\n\n<p>If you\u2019re building flexible circuits at volume, our&nbsp;<a href=\"https:\/\/template01.zehannet.net\/ar\/capabilities\/\">Capabilities<\/a>&nbsp;page shows the manufacturing scope we typically support for B2B programs.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"720\" src=\"https:\/\/template01.zehannet.net\/wp-content\/uploads\/2026\/01\/What-thickness-of-flex-PCB-material-is-best-for-wearables-1.jpg\" alt=\"What thickness of flex PCB material is best for wearables\" class=\"wp-image-1029\" title=\"\" srcset=\"https:\/\/template01.zehannet.net\/wp-content\/uploads\/2026\/01\/What-thickness-of-flex-PCB-material-is-best-for-wearables-1.jpg 960w, https:\/\/template01.zehannet.net\/wp-content\/uploads\/2026\/01\/What-thickness-of-flex-PCB-material-is-best-for-wearables-1-600x450.jpg 600w, https:\/\/template01.zehannet.net\/wp-content\/uploads\/2026\/01\/What-thickness-of-flex-PCB-material-is-best-for-wearables-1-300x225.jpg 300w, https:\/\/template01.zehannet.net\/wp-content\/uploads\/2026\/01\/What-thickness-of-flex-PCB-material-is-best-for-wearables-1-768x576.jpg 768w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"polyimide-thickness-and-adhesive-how-the-base-film-changes-feel\">Polyimide thickness and adhesive: how the base film changes feel<\/h2>\n\n\n\n<p>Wearable comfort often comes down to the&nbsp;<strong>polyimide (PI) base film<\/strong>&nbsp;more than anything else. Engineers feel this immediately when they handle samples: thin PI drapes; thick PI \u201cremembers\u201d shape.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"12-5-m-25-m-50-m-polyimide-options\">12.5 \u03bcm, 25 \u03bcm, 50 \u03bcm polyimide options<\/h3>\n\n\n\n<p>In wearables, you\u2019ll usually see PI film around:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>12.5 \u03bcm<\/strong>\u00a0when you want maximum flexibility<\/li>\n\n\n\n<li><strong>25 \u03bcm<\/strong>\u00a0as a common all-around choice<\/li>\n\n\n\n<li><strong>50 \u03bcm<\/strong>\u00a0when you need more mechanical support<\/li>\n<\/ul>\n\n\n\n<p>Two practical tips:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Keep the bend zone simple.<\/strong>\u00a0If you need thicker materials for handling, confine that thickness to non-bending regions.<\/li>\n\n\n\n<li><strong>Control transitions.<\/strong>\u00a0Sudden thickness steps create stress risers. That\u2019s where cracks start.<\/li>\n<\/ol>\n\n\n\n<p>When you combine PI thickness with copper thickness and coverlay, you\u2019re really designing \u201cbend feel\u201d and \u201cbend life,\u201d not just a number on a drawing.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"minimum-bend-radius-thickness-math-you-can-use-on-day-one\">Minimum bend radius: thickness math you can use on day one<\/h2>\n\n\n\n<p>Here\u2019s the quick mental model many hardware teams use early on:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Dynamic flex:<\/strong>\u00a0target\u00a0<strong>20\u201340\u00d7 the total flex thickness<\/strong>\u00a0as your minimum bend radius<\/li>\n\n\n\n<li><strong>Static flex:<\/strong>\u00a0you can often go tighter, but you still want margin<\/li>\n<\/ul>\n\n\n\n<p>That rule keeps you out of the danger zone during early prototypes, even before you run full FEA.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-right\" data-align=\"right\">Total flex thickness<\/th><th class=\"has-text-align-right\" data-align=\"right\">Dynamic flex bend radius (rough target)<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-right\" data-align=\"right\">0.10 mm<\/td><td class=\"has-text-align-right\" data-align=\"right\">2\u20134 mm<\/td><\/tr><tr><td class=\"has-text-align-right\" data-align=\"right\">0.15 mm<\/td><td class=\"has-text-align-right\" data-align=\"right\">3\u20136 mm<\/td><\/tr><tr><td class=\"has-text-align-right\" data-align=\"right\">0.20 mm<\/td><td class=\"has-text-align-right\" data-align=\"right\">4\u20138 mm<\/td><\/tr><tr><td class=\"has-text-align-right\" data-align=\"right\">0.30 mm<\/td><td class=\"has-text-align-right\" data-align=\"right\">6\u201312 mm<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>If your industrial design forces a bend tighter than these ranges, you don\u2019t \u201cwish it away.\u201d You redesign the stack-up, adjust the fold geometry, or move the flex path. That\u2019s cheaper than chasing field failures later.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"720\" src=\"https:\/\/template01.zehannet.net\/wp-content\/uploads\/2026\/01\/What-thickness-of-flex-PCB-material-is-best-for-wearables-3.jpg\" alt=\"What thickness of flex PCB material is best for wearables\" class=\"wp-image-1031\" title=\"\" srcset=\"https:\/\/template01.zehannet.net\/wp-content\/uploads\/2026\/01\/What-thickness-of-flex-PCB-material-is-best-for-wearables-3.jpg 960w, https:\/\/template01.zehannet.net\/wp-content\/uploads\/2026\/01\/What-thickness-of-flex-PCB-material-is-best-for-wearables-3-600x450.jpg 600w, https:\/\/template01.zehannet.net\/wp-content\/uploads\/2026\/01\/What-thickness-of-flex-PCB-material-is-best-for-wearables-3-300x225.jpg 300w, https:\/\/template01.zehannet.net\/wp-content\/uploads\/2026\/01\/What-thickness-of-flex-PCB-material-is-best-for-wearables-3-768x576.jpg 768w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"copper-thickness-layer-count-and-impedance-why-thin-isn-t-always-better-\">Copper thickness, layer count, and impedance: why \u201cthin\u201d isn\u2019t always \u201cbetter\u201d<\/h2>\n\n\n\n<p>Wearables live on tiny batteries. That pushes teams to chase thinness. But electrical needs can force you back the other way.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"copper-thickness-and-current\">Copper thickness and current<\/h3>\n\n\n\n<p>Low-power sensor lines can run on thinner copper without drama. But wearables also have:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>charging paths<\/li>\n\n\n\n<li>haptics<\/li>\n\n\n\n<li>LEDs<\/li>\n\n\n\n<li>radios with controlled impedance sections<\/li>\n<\/ul>\n\n\n\n<p>Thicker copper increases robustness and current capacity, but it also reduces flexibility. A common compromise is&nbsp;<strong>keeping high-current copper out of the bend zone<\/strong>&nbsp;and routing those nets in a stiffer region.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"single-layer-flex-vs-multilayer-flex-vs-rigid-flex\">Single-layer flex vs multilayer flex vs rigid-flex<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Single-layer flex<\/strong>: best for tight bends and high flex life<\/li>\n\n\n\n<li><strong>Double-layer flex<\/strong>: better routing density, but stiffer<\/li>\n\n\n\n<li><strong>Multilayer flex<\/strong>: possible, but you pay in stiffness and bend reliability<\/li>\n\n\n\n<li><strong>Rigid-flex<\/strong>: great when you need rigid component \u201cislands\u201d plus flex interconnects<\/li>\n<\/ul>\n\n\n\n<p>If your wearable has a dense module plus a flex tail, rigid-flex can simplify assembly and reduce connectors. If that matches your architecture, take a look at our&nbsp;<a href=\"https:\/\/template01.zehannet.net\/ar\/b2b-rigid-flex-pcb-manufacturer-for-foldable-flex-circuits\/\">Rigid-flex PCB manufacturing<\/a>&nbsp;example to see how those builds typically get structured.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"stiffener-design-for-connectors-and-component-islands\">Stiffener design for connectors and component islands<\/h2>\n\n\n\n<p>Stiffeners solve a common wearable failure mode:&nbsp;<strong>the flex tail survives bending, but dies at the connector<\/strong>.<\/p>\n\n\n\n<p>A stiffener:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>supports insertion force<\/li>\n\n\n\n<li>reduces peel stress on pads<\/li>\n\n\n\n<li>prevents the flex from \u201chinging\u201d right at the solder joints<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"where-to-place-stiffeners-in-wearables\">Where to place stiffeners in wearables<\/h3>\n\n\n\n<p>Put stiffeners where humans and assembly tools apply force:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ZIF\/FFC connector zones<\/li>\n\n\n\n<li>test pads that get pogo-pinned repeatedly<\/li>\n\n\n\n<li>battery tab joints<\/li>\n\n\n\n<li>any place you\u2019ll rework during bring-up<\/li>\n<\/ul>\n\n\n\n<p>If you\u2019re building a flexible circuit specifically for OEM devices, this product page gives a good snapshot of the type of flex parts buyers request:&nbsp;<a href=\"https:\/\/template01.zehannet.net\/ar\/b2b-custom-fpc-flexible-pcb-manufacturer-for-oem-devices\/\">Custom FPC flexible PCB for OEM devices<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"manufacturing-and-assembly-realities-for-b2b-programs\">Manufacturing and assembly realities for B2B programs<\/h2>\n\n\n\n<p>Wearables often look simple on paper, then get weird in production: tight folds, cosmetic constraints, adhesive stack-ups, and assembly takt time pressure.<\/p>\n\n\n\n<p>If you care about yield and delivery, build these checks into your plan early:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>lock the bend zone geometry before you freeze tooling<\/li>\n\n\n\n<li>call out stiffeners clearly (material, thickness, location)<\/li>\n\n\n\n<li>define what \u201cbend here\u201d means (keep-out zones, fold lines)<\/li>\n\n\n\n<li>avoid sharp copper corners in flex areas<\/li>\n\n\n\n<li>specify inspection needs for flex cracks and coverlay registration<\/li>\n<\/ul>\n\n\n\n<p>For manufacturing flow, these two pages show how we typically support B2B customers moving from prototype to volume:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/template01.zehannet.net\/ar\/services\/pcb-fabrication\/\">PCB fabrication service<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/template01.zehannet.net\/ar\/services\/pcb-assembly\/\">PCB assembly service<\/a><\/li>\n<\/ul>\n\n\n\n<p>And if you want to see how we approach process control and shipment consistency, check&nbsp;<a href=\"https:\/\/template01.zehannet.net\/ar\/quality\/\">Quality control<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"send-your-stack-up-early-what-to-include-in-your-rfq\">Send your stack-up early: what to include in your RFQ<\/h2>\n\n\n\n<p>When you request a quote for wearable flex, include these upfront. It saves days of back-and-forth and prevents \u201cDFM surprises\u201d late in the cycle.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>flex type: dynamic flex or static flex<\/li>\n\n\n\n<li>target total thickness range (not just a single number)<\/li>\n\n\n\n<li>PI thickness preference (if you have one)<\/li>\n\n\n\n<li>copper thickness and any high-current rails<\/li>\n\n\n\n<li>layer count and controlled impedance needs (if any)<\/li>\n\n\n\n<li>bend radius or fold geometry constraints<\/li>\n\n\n\n<li>stiffener locations and thickness<\/li>\n\n\n\n<li>assembly requirements (SMT both sides? reflow profile? test strategy?)<\/li>\n<\/ul>\n\n\n\n<p>If you want to talk through your specific wearable stack-up\u2014wrist, ring, patch, clip-on\u2014reach out here:&nbsp;<a href=\"https:\/\/template01.zehannet.net\/ar\/contact-us\/\">Contact us<\/a>. If you\u2019d rather learn our background first, here\u2019s&nbsp;<a href=\"https:\/\/template01.zehannet.net\/ar\/about-us\/\">About us<\/a>.<\/p>\n\n\n\n<p>Internal links used above were selected from your PCB.json list.<\/p>","protected":false},"excerpt":{"rendered":"<p>Choosing flex PCB thickness for wearables? Use 0.10\u20130.30 mm, match dynamic vs static bend, size bend radius, and add stiffeners for real-world use. No guesswork<\/p>","protected":false},"author":1,"featured_media":1030,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"","footnotes":""},"categories":[1],"tags":[685,678,679,702,681,701],"class_list":["post-1027","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-market-trends","tag-bend-radius","tag-flex-pcb","tag-pcb-stiffener","tag-polyimide","tag-rigid-flex-pcb","tag-wearable-electronics"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/template01.zehannet.net\/ar\/wp-json\/wp\/v2\/posts\/1027","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/template01.zehannet.net\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/template01.zehannet.net\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/template01.zehannet.net\/ar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/template01.zehannet.net\/ar\/wp-json\/wp\/v2\/comments?post=1027"}],"version-history":[{"count":1,"href":"https:\/\/template01.zehannet.net\/ar\/wp-json\/wp\/v2\/posts\/1027\/revisions"}],"predecessor-version":[{"id":1032,"href":"https:\/\/template01.zehannet.net\/ar\/wp-json\/wp\/v2\/posts\/1027\/revisions\/1032"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/template01.zehannet.net\/ar\/wp-json\/wp\/v2\/media\/1030"}],"wp:attachment":[{"href":"https:\/\/template01.zehannet.net\/ar\/wp-json\/wp\/v2\/media?parent=1027"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/template01.zehannet.net\/ar\/wp-json\/wp\/v2\/categories?post=1027"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/template01.zehannet.net\/ar\/wp-json\/wp\/v2\/tags?post=1027"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}